Dictionary
windlessness
noun
Absence of wind.
synonyms
Exact(3)
The examples given are "windlessness" (nênemia), which is defined as "stillness [the form] in a quantity of air [the matter]," and "calm-on-the-ocean" (galênê), which is defined as "levelness [the form] of sea [the matter]." The terms form and matter are Aristotle's, and we cannot be sure how Archytas conceptualized the two parts of his definitions.
The oddity of "windlessness" and "calm-on-the-sea" as examples suggests that they were not the by-products of some other sort of investigation, e.g. cosmology, but were chosen precisely to illustrate principles of definition.
"Windlessness" and "calm-on-the-ocean" are recognized as alike, and this likeness can be expressed in the following proportion: as nênemia is to the air so galênê is to the sea.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com